Electric vacuum cleaner



G. J. STRINGER ET AL ELECTRIC VACUUM CLEANER Filed March 15, 1924 TOR.

ATTORNEY.

I dust bag,

atented Nov. ll, 392d.

GEORGE J'. STRING-ER AND LESLIE L. NEWCOMB E, OF BAY CITY, MICHIGAN.

ELECTRIC VACUUM CLEANER.

Application filed March 15, 1924. Serial No. 699,425.

To all whom it may concern:

Be it known that we, GEORGE J. STRINGER and LEsLrn L. NEWCOMBE, citizens of the United States of America, and residents of Bay IOity, in the county of Bay and State of ichigan, have invented certain new and useful Improvements in Electric Vacuum Cleaners, of which the following is a specification. I g

This invention relates to improvements in electric vacuum cleaners and the like, and particularly to the type provided with a dust bag into which the dirt and dust is exhausted by the motor.

.One ob ect of the invention vis to provide means whereby the dust bag of a vacuum cleaner can be emptied and cleaned without detaching the bag proper from the machine andshaking the dirt contained therein onto the floor or into a receptacle.

Another object'is to provide and position a metallic guard or lip on the inside of the dust bag so that a vacuum will be created and the dust and dirt collected thereby.

A further object is to provide a discharge opening or throat, and means for detachably securing a flexible bag thereto, and in such manner that the bag can be rolled up and concealed within the discharge opening when the' cap or cover is in place, and

until .such time as it is necessary to clean the when upon removal of the cover, the dust and dirt can be exhausted into the bagfwhich can then be removed and placed in a furnace or other convenient receptacle. A still further object is to provide a simple and in expensive attachment preferably made up of sheet metal, and on which quantity production can be secured.

With the above and other objects in view, the present invention consists in the combinatlon and arrangement of parts hereinafter more fully described, illustrated in the and particularlyaccompanying I drawings, pointed out in the appended claims,'it being understood that changes may be made in the size, shapevand proportion of the different parts Without departing from' the spirit or sacrificing any of the advantages of theinr yention.

In the drawin Fig. 1 is a fragmentary side view of a conventional electric vacuumcleaner show-' mg our improved attachment in place thereon. I o

' Fig. 2 is an enlarged top plan view of the guard.

"acuum cleaner, this is provided, with a throat '2' to whichthe flexible dust bag 3 is connected, the one end being shaped to fit thereover, and adapted to be secured thereto in any approved manner, the opposite end. of the bag being attached to the cleanen handle 4 by means of a spring 5, the operation of he cleaner proper being exactly the same as he conventional cleaners at present in general use.

In the usual vacuum cleaner the suction device collects the dust and dirt from the surface being'trea-ted, and this dirt is then exhausted into a fabric bag which must be cleaned from time to time, this being done by detaching the 'bag from the machine, openingthe one end thereof, and then shaking the dust and dirt therefrom, This is a very dirty and disagreeable task, as the tralizing and collecting the dust and dirt and means directly therebeneath into which it can be exhausted and which can then be removed and disposed of as desired.

In our improved construction we provide bag and secure aflat ring member 7 in position as shown, a metallic guard 8 having a to Fig. 3, the g v 1 indicates the motor of the conventional .an opening 6'i-n the underside of the dust motor, it strikes this inclined wal and a vacuum is created, the dirt and dust being deposited in the discharge opening and behind the wall. 'Outwardly divergin wings are formed integral with'this wall 9 and these wings are also slightly inclined, the

1 ends of the wings normally extending to the side Walls of the bag, and as certain makes of" cleaners are provided with larger dust bags than others, it will-of course be necessary to proportion the wings of the metallic guard accordingly.

Y A cylindrical discharge throat 11 is secured to the outside of the dust bag, being formed with a flange 11 for securing it to the ring 7, the throat 11 being formed with a beaded portion 12 intermediate its length and when a flexible paper sack 13 is placed over the end of the throat, a small coiled spring 14 is placed thereover and rests in the groove formed by the bead.

A cylindrical cap member 15 is adapted to cover the throat member 11. This cap member is slightly larger in diameter than the throat, being formed with a flange 15 which is adapted to register with the flange 11 oi the throat and is provided with spaced apart openings 16 adapted to engage headed studs 17 secured to the flange 11 and it will be obvious that when the studs are introduced into the openings that slight rotation of the cap will firmly lock it in position.

When the paper sack is placed over the end of the throat, it is rolled as clearly shown in Fig. 3 of the drawing, allowing the cap to be placed in position thereo-ver,

, and the dirt and dust will then collect as indicated in this same figure, but when the cap is removed and the cleaner is in opera- 1 tion this paper sack will be inflated, the air forcing the dirt and dust into the sack as shown in Figure 4. The bag canthen be removed by merely removing the spring 14:, and another bag placed in position.

While in the resent instance we have shown and 'descnbed a aper sack for receiving the dirt, it will e'apparent that a sack of any flexible material will be equally good, but as there ar always paper sacks about the home, it preients a very inexpen-' sive and convenient means of disposing of the dirt. 5

From the foregoing description it will be obvious that we have perfected a very simand efficient attachment whereby the ;;bags of vacuum cleaners can be easily quickly cleaned without removing them from th -cleaner and without soiling the operators hands or clothing, or scattering the due and dirt in the room or place where the dust bag is being-cleaned.

What we claim is 1. A dust bag for vacuum cleaners having a guard secured therein, a discharge opening beneath the guard and means for securing a flexible sack thereto.

2. A dust bag a metallic guardmecured therein, a discharge throat beneath. theguard, a flexible sack secured thereto, and a cover for said throat.

3. A dust bag for vacuum cleaners having a metallic guard secured therein, adischarge opening beneath the guard, a flexible sack secured thereto and a cover detachably secured to the said throat.

for vacuum cleaners having 4. A dust bag for vacuum cleaners hav- I ing a metallic guard formed with an inclined front wall and outwardly diverging wings secured therein, a discharge opening beneath the guard, a flanged discharge throat secured thereto, a flexible sack removably secured to said throat, and a cover detachably secured to the said throat flange. 5. A dust bag for vacuum cleaners having a metallic guard secured therein and forme with an inclined front wallterminating in outwardly diverging wings, a discharge opening beneath the guard, a flanged discharge throat secured thereto and having a beaded portion intermediate its length, a sack adapted to be fitted to the mouth of the discharge throat, a coiled" spring coopcrating with the beaded portion of the throat for holding it in position, and a cover detachably secured to the flange of the throat.

6. The combination with the dust bag of a vacuum cleaner, of a metallic guard se-- cured therein and formed with outwardly divergingwvings, a discharge opening therebeneath, a cylindrical throat secured thereto and adapted to have a flexible sack fitted thereto, a restricted area intermediate the length of the throat, a coiled spring cooperating'therewith, and a detachable cover -set over the said cylindrical throat member.

7. The combination with the dust bag of a vacuum cleaner, of a flanged metallic guard secured therein and formed with outwardly diverging wings, a discharge opening beneath the guard, a flanged cylindrical discharge throat secured thereto and provided with a beaded portion intermediate its length, a flexible sack adapted to fit the mouth of said opening, a coiled s ring for securing the sack thereto, a cover tted over said cylindrical throat portion, lugs on the throat flange, and openings in the cover and engaging the lugs for locking. the said cover in lace.

n testimony whereof we afiix our signatures.

GEORGE J. STRINGER. LESLIE L. NEWCOMBE. 

